You are totally right sir !
In the history of quenching [PDF here http://bit.ly/1ad9Akv] the author states it was common to urine for quenching.
This property seems to have independently been discovered by chinese and europeans.
In the history of quenching [PDF here http://bit.ly/1ad9Akv] the author states it was common to urine for quenching.
This property seems to have independently been discovered by chinese and europeans.
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